I have a 2003 CAT 246 skid steer that I bought new. Has about 2300 or 2400 hours. I profoundly recall when the machine was new and I would push snow on level, paved lots, clearly hearing the Turbo working. A few months ago it hit me "hey, I no longer hear the turbo working". I plow the roads where I live, which are very hilly, and I do not hear the Turbo. This, of all places is where I would expect to hear the turbo doing it's work. So my question is for others that own and operate the CAT 246 - Can you distinctively hear your turbo working??? Any feedback is appreciated, I'm beginning to think I need a new turbo.